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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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11 * http://www.apache.org/licenses/LICENSE-2.0
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21
22 #include <com/sun/star/accessibility/XAccessible.hpp>
23 #include <com/sun/star/accessibility/AccessibleStateType.hpp>
24 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
25 #include <com/sun/star/accessibility/AccessibleRole.hpp>
26 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
27
28 #include "AccTreeEventListener.hxx"
29 #include "AccObjectManagerAgent.hxx"
30 #include "unomsaaevent.hxx"
31
32 using namespace com::sun::star::uno;
33 using namespace com::sun::star::accessibility;
34
AccTreeEventListener(com::sun::star::accessibility::XAccessible * pAcc,AccObjectManagerAgent * Agent)35 AccTreeEventListener::AccTreeEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent)
36 :AccDescendantManagerEventListener(pAcc, Agent)
37 {}
~AccTreeEventListener()38 AccTreeEventListener::~AccTreeEventListener()
39 {
40 }
41
42 /**
43 * Uno's event notifier when event is captured
44 * @param AccessibleEventObject the event object which contains information about event
45 */
notifyEvent(const::com::sun::star::accessibility::AccessibleEventObject & aEvent)46 void AccTreeEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException)
47 {
48 switch (aEvent.EventId)
49 {
50 case AccessibleEventId::ACTIVE_DESCENDANT_CHANGED:
51 handleActiveDescendantChangedEvent(aEvent.OldValue, aEvent.NewValue);
52 break;
53 default:
54 AccDescendantManagerEventListener::notifyEvent(aEvent);
55 break;
56 }
57 }
58
59 /**
60 * handle the ACTIVE_DESCENDANT_CHANGED event
61 * @param oldValue the child to lose active
62 * @param newValue the child to get active
63 */
handleActiveDescendantChangedEvent(Any oldValue,Any newValue)64 void AccTreeEventListener::handleActiveDescendantChangedEvent(Any oldValue, Any newValue)
65 {
66 Reference< XAccessible > xChild;
67 if(newValue >>= xChild )
68 {
69 if(xChild.is())
70 {
71 XAccessible* pAcc = xChild.get();
72 pAgent->InsertAccObj(pAcc,pAccessible);
73 pAgent->NotifyAccEvent(UM_EVENT_ACTIVE_DESCENDANT_CHANGED, pAcc);
74 pActiveDescendant = pAcc;
75 }
76 }
77 if (oldValue >>= xChild)
78 {
79 //delete an existing child
80 if(xChild.is())
81 {
82 XAccessible* pAcc = xChild.get();
83 pAgent->DeleteAccObj( pAcc );
84 }
85 }
86
87 }
88